Home / 185,821.50-256,438.35-100,938.54

Finding the Fourth Proportional to 185,821.50, 256,438.35 and 100,938.54

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Solution

The fourth proportional to 185,821.50, 256,438.35 and 100,938.54 is: 139,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,821.50 : 256,438.35 = 100,938.54 : x
  2. Step 2: Convert to fraction form
    185,821.50/256,438.35 = 100,938.54/x
  3. Step 3: Cross multiply
    185,821.50x = 256,438.35 × 100,938.54
  4. Step 4: Simplify right side
    185,821.50x = 25,884,512,649.01
  5. Step 5: Solve for x
    x = 25,884,512,649.01/185,821.50
  6. Step 6: Final answer
    x = 139,297.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.